Again Jesus is arguing with the Pharisees about their willful rebellion and refusal to listen to the truth. From the very first time Jesus revealed Himself as the coming Messiah to the woman at the well in John 4:26, to His use of Old Testament “I AM” language in these verses, He was illustrating how far apart heaven & earth were & how far apart the knowledge of the Pharisees and the truth was. In John 3:31 John the Baptist distinguished Jesus from all other human beings as coming from above… and of being in the world, but not of it. The Pharisees trusted in their technical knowledge of the Scriptures & would die because of it…but Believers who place their faith & trust in Jesus will experience saving knowledge of their Lord & Savior and receive eternal life.